Expedition Unknown · SEASON 4

The Secret

Episode 4 · 2018-01-17

★ 7.0
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Expedition Unknown poster
Season 4Episode 4★ 7.0/10
  • Documentary
  • Reality
  • Action & Adventure

Episode overview

Josh travels across the United States to find the treasures featured in the cryptic 1982 book "The Secret"; Josh meets with members of the book's cult following, who each think they are on the verge of locating one of the 10 remaining treasures.

60 minutes

Season 4 episodes

1. Viking Secrets2017-12-27 2. Vikings in America2018-01-03 3. Origins of Stonehenge2018-01-10 4. The Secret2018-01-17 5. Butch Cassidy's Lost Loot2018-01-24 6. Hunt for the Metal Library2018-01-31 7. Great Women of Ancient Egypt2018-02-07 8. Egypt's Lost Queens2018-02-14 9. Global Game Show: Out of This World2018-02-21 10. Secrets of Brother XII2018-02-28